FMA 12V 50A Four-Phase Battery Charger with PWM Technology for AGM, GEL, and Lead-Acid Car Batteries

The FMA series lead-acid battery charger is professionally designed for power batteries used in electric vehicles and equipment. It adopts advanced soft-switching technology, featuring compact size, easy installation, high conversion efficiency, stable output current, large capacity, high reliability, and long service life.

• Professionally designed for electric vehicle power battery systems
• Advanced soft-switching technology for compact size and simple installation
• High conversion efficiency, stable output current, and large capacity
• Comprehensive protections: short-circuit, undervoltage, and overtemperature
• Long-delay digital counter ensures reliable switching from constant voltage to float charge
• Prevents battery damage from dehydration and plate sulfation
• Reverse battery polarity protection
• Constant charging voltage: 14.5V-14.8V DC
• Built-in PWM function for improved performance
• OEM and ODM services available

• Pre-charge mode: Protects battery and extends life by supplying low output current when internal resistance is high or voltage is low due to prolonged discharge or disuse. Automatically switches to constant current mode when battery voltage reaches specified value.
• Constant current mode: Provides constant charge current for the battery.
• Constant voltage mode: Uses PWM technology to control charging current and output voltage, ensuring complete charging without overcharging.
• Floating charge mode: Automatically switches when battery voltage approaches constant voltage value and current decreases to specified level. Indicator turns green and fan stops. Battery can be disconnected or kept on float charge.

1. Verify battery rated voltage matches charger output voltage
2. Connect charger and battery according to proper requirements
3. Confirm city power voltage matches charger rated input voltage
4. Connect city power and verify indicator turns on and fan operates
5. If indicator remains off, immediately disconnect city power and check all connections
6. After full charge, disconnect city power first, then remove battery connection wires

Sunchonglic is an established manufacturer with over 20 years of experience in Solar Energy Photovoltaic Products. Our product range includes Solar Power Inverters, AGM/GEL Lead Acid Battery Chargers, Solar Charge Controllers, and complete Solar Systems.

Our products have earned widespread recognition and trust from clients worldwide, effectively adapting to evolving economic and social demands. We cordially invite both existing and potential partners to collaborate with us in establishing partnerships for shared prosperity!